Yokogawa AFS20D Duplex Field Control Unit
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 15305023276 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AFS20D |
| Product Name | Duplex Field Control Unit |
| Brand | Yokogawa |
| Product Type | Industrial automation field control unit (FCS subsystem) |
| Application | DCS distributed control systems, process industrial automation control |
| Core Function | Field signal acquisition, control computation, and output execution management |
| Redundancy Structure | Duplex redundant configuration |
| Control Mode | Real-time process control and logic control |
| I/O Support | Supports analog and digital I/O expansion |
| Communication Protocol | Industrial Ethernet and dedicated control network protocols |
| System Integration | Yokogawa CENTUM DCS architecture |
| Data Processing | Real-time control processing with redundant synchronization |
| Failover Mechanism | Automatic hot-standby switchover |
| Safety Features | Data validation, redundancy protection, and fault isolation |
| Installation Method | Cabinet-mounted modular installation |
| Maintenance | Modular design with support for online maintenance |
| Dimensions | 207 × 265.9 × 482.6 mm |
| Weight | 8 kg |
FAQ
1. What is the main function of the Yokogawa AFS20D Duplex Field Control Unit?
The AFS20D is responsible for core field-level control in industrial automation systems. It collects signals from field instruments, executes control logic in real time, and sends output commands to actuators. It acts as a critical control node within DCS environments, ensuring stable and continuous process operation.
2. What does “Duplex redundancy” mean in this system?
Duplex redundancy means the unit is composed of two synchronized control paths: a primary and a standby unit. If the active unit fails, the standby unit immediately takes over without interrupting the process. This design significantly improves system reliability and operational continuity.
3. In which industries is the AFS20D commonly used?
The AFS20D is widely used in oil and gas, petrochemical processing, power generation, metallurgy, pharmaceuticals, pulp and paper, and water treatment industries. It is especially suitable for continuous processes that require high availability and stable control performance.
4. What role does the AFS20D play in a DCS architecture?
Within a DCS system, the AFS20D operates as the field control layer. It translates high-level control strategies into real-time actions, directly interacting with field devices such as sensors, valves, and actuators.
5. How does the automatic failover mechanism work?
The system continuously synchronizes data between the primary and standby units. When a fault is detected in the active controller, the standby unit takes over within milliseconds, ensuring uninterrupted control and preventing process disturbances.
6. Does the unit support maintenance during operation?
Yes, the modular design allows certain components to be replaced or serviced while the system remains in operation. This minimizes downtime and enhances overall system availability in critical industrial applications.
7. Why is communication capability important in this control unit?
Communication capability ensures fast and reliable data exchange between field devices, control layers, and higher-level systems. The AFS20D supports industrial-grade communication networks to maintain real-time synchronization and control accuracy.
8. What benefits does the AFS20D provide for industrial automation systems?
It improves system stability, enhances operational safety, and reduces the risk of downtime through redundancy. It also enables precise real-time control, making it a key component for high-reliability automation in modern industrial plants.
Yokogawa AFS20D Duplex Field Control Unit is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








